Method and apparatus for detecting unlicensed frequency band

Abstract

A method and apparatus for detecting an unlicensed frequency band. The method includes: determining whether a detection mechanism for a channel in an unlicensed frequency band needs to be adjusted based on a preset communication parameter; in response to that the detection mechanism needs to be adjusted, determining an adjusted detection mechanism; and detecting the channel in the unlicensed frequency band based on the adjusted detection mechanism.

What is claimed is: 
     
       1. A method for detecting an unlicensed frequency band, applied to a terminal, comprising:
 determining whether a detection mechanism for a channel in an unlicensed frequency band needs to be adjusted based on a preset communication parameter; 
 in response to determination that the detection mechanism needs to be adjusted, determining an adjusted detection mechanism; and 
 detecting the channel in the unlicensed frequency band based on the adjusted detection mechanism; 
 wherein the preset communication parameter comprises a preset pilot sequence sent by a base station, and wherein determining whether the detection mechanism for the channel in the unlicensed frequency band needs to be adjusted based on the preset communication parameter comprises: 
 determining whether the preset pilot sequence is received; 
 wherein, in response to that the preset pilot sequence is received, determining that the detection mechanism needs to be adjusted. 
 
     
     
       2. The method of  claim 1 , wherein the preset communication parameter comprises a time interval between time information of a scheduling instruction sent by a base station and a time domain resource scheduled by the scheduling instruction;
 and wherein determining whether the detection mechanism for the channel in the unlicensed frequency band needs to be adjusted based on the preset communication parameter comprises: 
 determining whether the time interval is greater than a preset duration; 
 wherein, in response to that the time interval is greater than the preset duration, determining that the detection mechanism needs to be adjusted. 
 
     
     
       3. The method of  claim 2 , wherein the preset communication parameter comprises a time interval between time information of a scheduling instruction sent by a base station and a time domain resource scheduled by the scheduling instruction, and a time domain resource of uplink transmission scheduled by the scheduling instruction sent by the base station;
 and wherein determining whether the detection mechanism for the channel in the unlicensed frequency band needs to be adjusted based on the preset communication parameter, comprises: 
 determining whether the time interval is greater than a preset duration; 
 in response to that the time interval is greater than the preset duration, determining whether the time domain resource of uplink transmission is outside current channel occupancy time of the unlicensed frequency band; 
 wherein, in response to that the time domain resource of uplink transmission is outside the current channel occupancy time of the unlicensed frequency band, determining that the detection mechanism needs to be adjusted. 
 
     
     
       4. The method of  claim 1 , wherein the preset communication parameter comprises a time domain resource of uplink transmission scheduled by a scheduling instruction sent by a base station;
 and wherein determining whether the detection mechanism for the channel in the unlicensed frequency band needs to be adjusted based on the preset communication parameter comprises: 
 determining whether the time domain resource of uplink transmission is outside current channel occupancy time of the unlicensed frequency band; 
 wherein, in response to that the time domain resource of uplink transmission is outside the current channel occupancy time of the unlicensed frequency band, determining that the detection mechanism needs to be adjusted. 
 
     
     
       5. The method of  claim 1 , wherein the preset communication parameter comprises indication information sent by a base station, and wherein determining whether the detection mechanism for the channel in the unlicensed frequency band needs to be adjusted based on the preset communication parameter, comprises:
 determining whether the indication information is received; 
 wherein, in response to that the indication information is received, determining that the detection mechanism needs to be adjusted; 
 determining the adjusted detection mechanism, comprises: 
 determining the adjusted detection mechanism based on the indication information sent by the base station. 
 
     
     
       6. The method of  claim 5 , wherein the indication information is comprised in first downlink control information, wherein the first downlink control information is further configured to indicate information other than the indication information to the terminal. 
     
     
       7. The method of  claim 5 , wherein the indication information is comprised in second downlink control information, wherein, the second downlink control information is dedicated to indicating a detection mechanism to the terminal. 
     
     
       8. The method of  claim 5 , wherein the indication information is a scrambling sequence, wherein determining the adjusted detection mechanism based on the indication information sent by the base station, comprises:
 determining a detection mechanism corresponding to the scrambling sequence as the adjusted detection mechanism based on the scrambling sequence and a prestored association relationship between scrambling sequences and detection mechanisms. 
 
     
     
       9. The method of  claim 5 , wherein the indication information is configured to indicate updating determined detection mechanism. 
     
     
       10. The method of  claim 5 , wherein the indication information is configured to indicate a detection mechanism. 
     
     
       11. The method of  claim 1 , wherein determining the adjusted detection mechanism, comprises:
 determining a type of the adjusted detection mechanism, and a parameter of the adjusted detection mechanism. 
 
     
     
       12. An electronic device, comprising:
 a processor; and 
 a memory configured to store instructions executable by the processor; 
 wherein, the processor is configured to implement: 
 determining whether a detection mechanism for a channel in an unlicensed frequency band needs to be adjusted based on a preset communication parameter; 
 in response to determination that the detection mechanism needs to be adjusted, determining an adjusted detection mechanism; and 
 detecting the channel in the unlicensed frequency band based on the adjusted detection mechanism; 
 wherein the preset communication parameter comprises a preset pilot sequence sent by a base station, and the processor is configured to implement: 
 determining whether the preset pilot sequence is received; 
 wherein, in response to that the preset pilot sequence is received, determining that the detection mechanism needs to be adjusted. 
 
     
     
       13. The electronic device of  claim 12 , wherein the preset communication parameter comprises a time interval between time information of a scheduling instruction sent by a base station and a time domain resource scheduled by the scheduling instruction;
 the processor is configured to implement: 
 determining whether the time interval is greater than a preset duration; 
 wherein, in response to that the time interval is greater than the preset duration, determining that the detection mechanism needs to be adjusted. 
 
     
     
       14. The electronic device of  claim 13 , wherein the preset communication parameter comprises a time interval between time information of a scheduling instruction sent by a base station and a time domain resource scheduled by the scheduling instruction, and a time domain resource of uplink transmission scheduled by the scheduling instruction sent by the base station;
 the processor is configured to implement: 
 determining whether the time interval is greater than a preset duration; 
 in response to that the time interval is greater than the preset duration, determining whether the time domain resource of uplink transmission is outside current channel occupancy time of the unlicensed frequency band; 
 wherein, in response to that the time domain resource of uplink transmission is outside the current channel occupancy time of the unlicensed frequency band, determining that the detection mechanism needs to be adjusted. 
 
     
     
       15. The electronic device of  claim 12 , wherein the preset communication parameter comprises a time domain resource of uplink transmission scheduled by a scheduling instruction sent by a base station;
 the processor is configured to implement: 
 determining whether the time domain resource of uplink transmission is outside current channel occupancy time of the unlicensed frequency band; 
 wherein, in response to that the time domain resource of uplink transmission is outside the current channel occupancy time of the unlicensed frequency band, determining that the detection mechanism needs to be adjusted. 
 
     
     
       16. The electronic device of  claim 12 , wherein the preset communication parameter comprises indication information sent by a base station, and the processor is configured to implement:
 determining whether the indication information is received; 
 wherein, in response to that the indication information is received, determining that the detection mechanism needs to be adjusted; 
 determining the adjusted detection mechanism, comprises: 
 determining the adjusted detection mechanism based on the indication information sent by the base station. 
 
     
     
       17. The electronic device of  claim 16 , wherein the indication information is comprised in first downlink control information, wherein, the first downlink control information is further configured to indicate information other than the indication information to the electronic device. 
     
     
       18. The electronic device of  claim 16 , wherein the indication information is comprised in second downlink control information, wherein, the second downlink control information is dedicated to indicating a detection mechanism to the electronic device. 
     
     
       19. The electronic device of  claim 16 , wherein the indication information is a scrambling sequence, wherein, the processor is configured to implement:
 determining a detection mechanism corresponding to the scrambling sequence as the adjusted detection mechanism based on the scrambling sequence and a prestored association relationship between scrambling sequences and detection mechanisms. 
 
     
     
       20. The electronic device of  claim 16 , wherein the indication information is configured to indicate updating determined detection mechanism. 
     
     
       21. The electronic device of  claim 16 , wherein the indication information is configured to indicate a detection mechanism. 
     
     
       22. The electronic device of  claim 12 , wherein the processor is configured to implement:
 determining a type of the adjusted detection mechanism, and a parameter of the adjusted detection mechanism.